What is Text Diff?
Text Diff is a professional-grade comparison tool that displays two texts side-by-side with differences highlighted. Our tool matches the functionality of popular services like Diffchecker, offering split/unified views, multiple comparison modes, merge capabilities, and export options.
Key Features
📊 View Modes
- • Split view (side-by-side)
- • Unified view (single column)
- • Hide unchanged lines
📤 Export Options
- • Export as PDF
- • Export as Excel
- • Export as Text
↔️ Merge Changes
- • Merge left or right
- • Reject individual changes
- • Navigate between changes
🎯 Precision Modes
- • Word-level comparison
- • Line-level comparison
- • Character-level comparison
How to Use Text Diff
1. Basic Comparison
- Paste your original text in the left box
- Paste your modified text in the right box
- Differences are automatically highlighted
- View statistics showing additions, removals, and unchanged content
2. Choose Your View Mode
Split View: See both texts side-by-side (recommended for most use cases)
Unified View: See combined diff in a single column (better for small screens)
3. Select Diff Precision
- Word Mode: Best for prose and documents (default)
- Line Mode: Best for code and structured text
- Character Mode: Most detailed, shows every character difference
4. Configure Ignore Options
Fine-tune your comparison by ignoring specific differences:
- ✓ Whitespace
- ✓ Case (upper/lower)
- ✓ Punctuation
- ✓ Numbers
5. Transform Text (Optional)
Apply transformations before comparing:
- To Lowercase: Compare text case-insensitively
- Trim Whitespace: Remove leading/trailing spaces
- Sort Lines: Alphabetically sort before comparison
Advanced Features
🔀 Merge Changes
Accept or reject individual changes directly from the diff view:
- Merge Left (←): Accept addition from right to left
- Merge Right (→): Accept removal from left to right
- Reject (✕): Remove the change entirely
- Copy: Copy individual line to clipboard
💡 Hover over any changed line to see merge options
🧭 Change Navigation
Navigate through changes efficiently:
- • See total change count (e.g., "Change 1 of 5")
- • Use Previous/Next buttons to jump between changes
- • Perfect for reviewing large documents
📥 Export Results
Save your comparison in multiple formats:
- PDF: Professional document with colored highlights
- Excel: Spreadsheet with structured data (Type, Line Numbers, Content)
- Text: Plain text with +/- prefixes (Git-style diff)
👁️ Hide Unchanged Lines
Focus on what matters by hiding unchanged content. Useful when comparing large documents with small changes. Shows count of hidden lines for reference.
Common Use Cases
💼 Code Review
Use line-level comparison with whitespace ignore to review code changes before committing. Export as PDF for team documentation.
📝 Document Editing
Compare document revisions using word-level precision. Hide unchanged sections to focus on edits. Merge accepted changes.
🌐 Translation Review
Compare original and translated text side-by-side. Export to Excel for translator review and tracking.
✅ Data Validation
Verify data transformations by comparing input and output. Use character-level precision for exact validation.
Tips & Best Practices
- 💡 Choose the right precision: Use word mode for documents, line mode for code, character mode for exact validation
- 🎯 Use ignore options wisely: Ignore whitespace for code comparison, ignore case for case-insensitive validation
- 👀 Hide unchanged for large files: When comparing large documents, hide unchanged lines to focus on differences
- 📊 Export for documentation: PDF for reports, Excel for tracking, Text for version control
- 🔄 Use merge features: Hover over changes to see merge options - accept or reject changes individually
- ⌨️ Navigate efficiently: Use Previous/Next buttons to review changes one at a time
- ✨ Transform before compare: Sort lines to find ordering differences, lowercase to ignore case
Try Text Diff Now
Dedicated ToolReady to use our professional text comparison tool? Access the full-featured diff tool with split view, merge capabilities, and export options.